“聪明的人不会两次被同一块石头绊倒。”对这句话理解错误的是（   ） 

A是四个不同质数的积，那么A最小是____．

    My father is 40. He is a good driver1a good father.
    My father likes2sports very much. Every morning, he3and runs in the People's Park. He also plays basketball. He is so strong and healthy. He always says to me, “Sports can make us strong.” My father loves4and his favorite book is Car Fanatics. He likes cars5.He wants to have an6car. It is his dream. I  hope I can buy one7him in the future.
    I am8only daughter, and my father loves me very much. He buys me anything I want. When I make mistakes( 犯错误), he never hits（打） me. He says to me9a smile, “ 10do that again,” We love each other very much. I hope my father can keep healthy forever.

谷子是中国传统作物，但亩均不足100公斤的产量长期困扰谷子生产。被誉为“杂交谷子之父”的赵治海在历经多次失败之后，认识到套用杂交水稻、高粱的模式去研究杂交谷子，是没有出路的，他抛开国内已沿用20多年的研究方法，根据谷子特性，采用光(温)敏两系法去试验谷子杂交，终于选育出“张杂谷”系列良种，亩产最高达到810公斤。这说明(   )                                                                                      
①具体问题具体分析是解决矛盾的关键 
②科技创新必须发扬辩证法的革命批判精神
③生产力发展是推动科技创新的根本动力   
④加强自我砥砺、提升自身素养是实现人生价值的根本途径

查尔酮类化合物G是黄酮类药物的主要合成中间体，其中一种合成路线如下:

已知以下信息:

①芳香烃A的相对分子质量在100-110之间，1 mol A充分燃烧可生成72 g水。

②C不能发生银镜反应。

③D能发生银镜反应、可溶于饱和Na₂CO₃溶液、核磁共振氢谱显示其有4种氢原子。

回答下列问题：